Couple of nice phone shots of Lichen, Foliose, Crustose.
Caution: Do NOT use iSpot to identify fungi to eat!
Some fungi are very poisonous so a mistaken ID could have serious consequences.
No interactions present.
may well be Porpidia tubercolosa.
Lat/Lng: 51.482, -0.987
OS grid ref: SU704763
St Peters Church